RetroArch/menu/menu_shader.c
2018-03-19 06:58:36 +01:00

548 lines
14 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <compat/strl.h>
#include <retro_assert.h>
#include <file/file_path.h>
#include <string/stdstring.h>
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#include "menu_driver.h"
#include "menu_shader.h"
#include "../file_path_special.h"
#include "../configuration.h"
#include "../paths.h"
#include "../retroarch.h"
#include "../verbosity.h"
/* Menu shader */
static struct video_shader *menu_driver_shader = NULL;
struct video_shader *menu_shader_get(void)
{
if (video_shader_any_supported())
return menu_driver_shader;
return NULL;
}
void menu_shader_manager_decrement_amount_passes(void)
{
struct video_shader *shader = menu_shader_get();
if (!shader)
return;
shader->passes--;
}
void menu_shader_manager_increment_amount_passes(void)
{
struct video_shader *shader = menu_shader_get();
if (!shader)
return;
shader->passes++;
}
void menu_shader_manager_free(void)
{
if (menu_driver_shader)
free(menu_driver_shader);
menu_driver_shader = NULL;
}
/**
* menu_shader_manager_init:
*
* Initializes shader manager.
**/
bool menu_shader_manager_init(void)
{
bool is_preset = false;
config_file_t *conf = NULL;
settings_t *settings = config_get_ptr();
char *new_path = NULL;
const char *path_shader = retroarch_get_shader_preset();
enum rarch_shader_type type = RARCH_SHADER_NONE;
menu_shader_manager_free();
menu_driver_shader = (struct video_shader*)
calloc(1, sizeof(struct video_shader));
if (!menu_driver_shader || !path_shader)
return false;
type = video_shader_get_type_from_ext(path_get_extension(path_shader),
&is_preset);
if (is_preset)
{
conf = config_file_new(path_shader);
new_path = strdup(path_shader);
}
else
{
if (video_shader_is_supported(type))
{
strlcpy(menu_driver_shader->pass[0].source.path, path_shader,
sizeof(menu_driver_shader->pass[0].source.path));
menu_driver_shader->passes = 1;
}
else
{
char preset_path[PATH_MAX_LENGTH];
const char *shader_dir =
*settings->paths.directory_video_shader ?
settings->paths.directory_video_shader :
settings->paths.directory_system;
preset_path[0] = '\0';
fill_pathname_join(preset_path, shader_dir,
"menu.glslp", sizeof(preset_path));
conf = config_file_new(preset_path);
if (!conf)
{
fill_pathname_join(preset_path, shader_dir,
"menu.cgp", sizeof(preset_path));
conf = config_file_new(preset_path);
}
if (!conf)
{
fill_pathname_join(preset_path, shader_dir,
"menu.slangp", sizeof(preset_path));
conf = config_file_new(preset_path);
}
new_path = strdup(preset_path);
}
}
if (
!string_is_empty(new_path) && conf &&
video_shader_read_conf_cgp(conf, menu_driver_shader)
)
{
video_shader_resolve_relative(menu_driver_shader, new_path);
video_shader_resolve_parameters(conf, menu_driver_shader);
}
if (new_path)
free(new_path);
if (conf)
config_file_free(conf);
return true;
}
/**
* menu_shader_manager_set_preset:
* @shader : Shader handle.
* @type : Type of shader.
* @preset_path : Preset path to load from.
*
* Sets shader preset.
**/
bool menu_shader_manager_set_preset(void *data,
unsigned type, const char *preset_path)
{
struct video_shader *shader = (struct video_shader*)data;
config_file_t *conf = NULL;
bool refresh = false;
settings_t *settings = config_get_ptr();
if (!video_driver_set_shader((enum rarch_shader_type)type, preset_path))
{
configuration_set_bool(settings, settings->bools.video_shader_enable, false);
return false;
}
/* Makes sure that we use Menu Preset shader on driver reinit.
* Only do this when the cgp actually works to avoid potential errors. */
strlcpy(settings->paths.path_shader,
preset_path ? preset_path : "",
sizeof(settings->paths.path_shader));
configuration_set_bool(settings, settings->bools.video_shader_enable, true);
if (!preset_path || !shader)
return false;
/* Load stored Preset into menu on success.
* Used when a preset is directly loaded.
* No point in updating when the Preset was
* created from the menu itself. */
conf = config_file_new(preset_path);
if (!conf)
return false;
RARCH_LOG("Setting Menu shader: %s.\n", preset_path);
if (video_shader_read_conf_cgp(conf, shader))
{
video_shader_resolve_relative(shader, preset_path);
video_shader_resolve_parameters(conf, shader);
}
config_file_free(conf);
menu_entries_ctl(MENU_ENTRIES_CTL_SET_REFRESH, &refresh);
return true;
}
/**
* menu_shader_manager_save_preset:
* @basename : basename of preset
* @apply : immediately set preset after saving
*
* Save a shader preset to disk.
**/
bool menu_shader_manager_save_preset(
const char *basename, bool apply, bool fullpath)
{
char buffer[PATH_MAX_LENGTH];
char preset_path[PATH_MAX_LENGTH];
char config_directory[PATH_MAX_LENGTH];
bool ret = false;
unsigned d, type = RARCH_SHADER_NONE;
const char *dirs[3] = {0};
config_file_t *conf = NULL;
struct video_shader *shader = menu_shader_get();
config_directory[0] = '\0';
buffer[0] = '\0';
preset_path[0] = '\0';
if (!shader)
return false;
type = menu_shader_manager_get_type(shader);
if (type == RARCH_SHADER_NONE)
return false;
if (basename)
{
strlcpy(buffer, basename, sizeof(buffer));
/* Append extension automatically as appropriate. */
if ( !strstr(basename,
file_path_str(FILE_PATH_CGP_EXTENSION))
&& !strstr(basename,
file_path_str(FILE_PATH_GLSLP_EXTENSION))
&& !strstr(basename,
file_path_str(FILE_PATH_SLANGP_EXTENSION)))
{
switch (type)
{
case RARCH_SHADER_GLSL:
strlcat(buffer,
file_path_str(FILE_PATH_GLSLP_EXTENSION),
sizeof(buffer));
break;
case RARCH_SHADER_SLANG:
strlcat(buffer,
file_path_str(FILE_PATH_SLANGP_EXTENSION),
sizeof(buffer));
break;
case RARCH_SHADER_CG:
strlcat(buffer,
file_path_str(FILE_PATH_CGP_EXTENSION),
sizeof(buffer));
break;
}
}
}
else
{
char default_preset[PATH_MAX_LENGTH];
default_preset[0] = '\0';
if (video_shader_is_supported((enum rarch_shader_type)type))
{
const char *config_path = path_get(RARCH_PATH_CONFIG);
/* In a multi-config setting, we can't have
* conflicts on menu.cgp/menu.glslp. */
const char *preset_ext = NULL;
switch (type)
{
case RARCH_SHADER_GLSL:
preset_ext = file_path_str(FILE_PATH_GLSLP_EXTENSION);
break;
case RARCH_SHADER_SLANG:
preset_ext = file_path_str(FILE_PATH_SLANGP_EXTENSION);
break;
case RARCH_SHADER_HLSL:
case RARCH_SHADER_CG:
preset_ext = file_path_str(FILE_PATH_CGP_EXTENSION);
break;
}
if (config_path)
{
fill_pathname_base_ext(default_preset,
config_path,
preset_ext,
sizeof(default_preset));
}
else
{
strlcpy(default_preset, "menu",
sizeof(default_preset));
strlcat(default_preset,
preset_ext,
sizeof(default_preset));
}
}
if (!string_is_empty(default_preset))
strlcpy(buffer, default_preset, sizeof(buffer));
}
if (!fullpath)
{
settings_t *settings = config_get_ptr();
if (!path_is_empty(RARCH_PATH_CONFIG))
fill_pathname_basedir(
config_directory,
path_get(RARCH_PATH_CONFIG),
sizeof(config_directory));
dirs[0] = settings->paths.directory_video_shader;
dirs[1] = settings->paths.directory_menu_config;
dirs[2] = config_directory;
}
conf = (config_file_t*)config_file_new(NULL);
if (!conf)
return false;
video_shader_write_conf_cgp(conf, shader);
if (fullpath)
{
if (!string_is_empty(basename))
strlcpy(preset_path, buffer, sizeof(preset_path));
if (config_file_write(conf, preset_path))
{
RARCH_LOG("Saved shader preset to %s.\n", preset_path);
if (apply)
menu_shader_manager_set_preset(NULL, type, preset_path);
ret = true;
}
else
RARCH_LOG("Failed writing shader preset to %s.\n", preset_path);
}
else
{
for (d = 0; d < ARRAY_SIZE(dirs); d++)
{
if (!*dirs[d])
continue;
fill_pathname_join(preset_path, dirs[d],
buffer, sizeof(preset_path));
if (config_file_write(conf, preset_path))
{
RARCH_LOG("Saved shader preset to %s.\n", preset_path);
if (apply)
menu_shader_manager_set_preset(NULL, type, preset_path);
ret = true;
break;
}
else
RARCH_LOG("Failed writing shader preset to %s.\n", preset_path);
}
}
config_file_free(conf);
if (ret)
return true;
RARCH_ERR("Failed to save shader preset. Make sure config directory"
" and/or shader dir are writable.\n");
return false;
}
int menu_shader_manager_clear_num_passes(void)
{
bool refresh = false;
struct video_shader *shader = menu_shader_get();
if (!shader)
return 0;
if (shader->passes)
shader->passes = 0;
menu_entries_ctl(MENU_ENTRIES_CTL_SET_REFRESH, &refresh);
video_shader_resolve_parameters(NULL, shader);
return 0;
}
int menu_shader_manager_clear_parameter(unsigned i)
{
struct video_shader *shader = menu_shader_get();
struct video_shader_parameter *param = shader ?
&shader->parameters[i] : NULL;
if (!param)
return 0;
param->current = param->initial;
param->current = MIN(MAX(param->minimum,
param->current), param->maximum);
return 0;
}
int menu_shader_manager_clear_pass_filter(unsigned i)
{
struct video_shader *shader = menu_shader_get();
struct video_shader_pass *shader_pass = shader ?
&shader->pass[i] : NULL;
if (!shader_pass)
return -1;
shader_pass->filter = RARCH_FILTER_UNSPEC;
return 0;
}
void menu_shader_manager_clear_pass_scale(unsigned i)
{
struct video_shader *shader = menu_shader_get();
struct video_shader_pass *shader_pass = shader ?
&shader->pass[i] : NULL;
if (!shader_pass)
return;
shader_pass->fbo.scale_x = 0;
shader_pass->fbo.scale_y = 0;
shader_pass->fbo.valid = false;
}
void menu_shader_manager_clear_pass_path(unsigned i)
{
struct video_shader *shader = menu_shader_get();
struct video_shader_pass *shader_pass = shader ?
&shader->pass[i] : NULL;
if (shader_pass)
*shader_pass->source.path = '\0';
}
/**
* menu_shader_manager_get_type:
* @shader : shader handle
*
* Gets type of shader.
*
* Returns: type of shader.
**/
unsigned menu_shader_manager_get_type(const void *data)
{
unsigned type = RARCH_SHADER_NONE;
const struct video_shader *shader = (const struct video_shader*)data;
/* All shader types must be the same, or we cannot use it. */
uint8_t i = 0;
if (!shader)
return RARCH_SHADER_NONE;
for (i = 0; i < shader->passes; i++)
{
enum rarch_shader_type pass_type =
video_shader_parse_type(shader->pass[i].source.path,
RARCH_SHADER_NONE);
switch (pass_type)
{
case RARCH_SHADER_CG:
case RARCH_SHADER_GLSL:
case RARCH_SHADER_SLANG:
if (type == RARCH_SHADER_NONE)
type = pass_type;
else if (type != pass_type)
return RARCH_SHADER_NONE;
break;
default:
break;
}
}
return type;
}
/**
* menu_shader_manager_apply_changes:
*
* Apply shader state changes.
**/
void menu_shader_manager_apply_changes(void)
{
unsigned shader_type;
struct video_shader *shader = menu_shader_get();
if (!shader)
return;
shader_type = menu_shader_manager_get_type(shader);
if (shader->passes && shader_type != RARCH_SHADER_NONE)
{
menu_shader_manager_save_preset(NULL, true, false);
return;
}
/* Fall-back */
shader_type = DEFAULT_SHADER_TYPE;
if (shader_type == RARCH_SHADER_NONE)
{
if (video_shader_is_supported(RARCH_SHADER_GLSL))
shader_type = RARCH_SHADER_GLSL;
else if (
video_shader_is_supported(RARCH_SHADER_CG) ||
video_shader_is_supported(RARCH_SHADER_HLSL)
)
shader_type = RARCH_SHADER_CG;
else if (video_shader_is_supported(RARCH_SHADER_SLANG))
shader_type = RARCH_SHADER_SLANG;
}
menu_shader_manager_set_preset(NULL, shader_type, NULL);
}